Finding the Fourth Proportional to 475,096.36, 655,629.72 and 257,300.02

Step by Step Solution

1. Step 1: Write the proportion equation
   475,096.36 : 655,629.72 = 257,300.02 : x
2. Step 2: Convert to fraction form
   475,096.36/655,629.72 = 257,300.02/x
3. Step 3: Cross multiply
   475,096.36x = 655,629.72 × 257,300.02
4. Step 4: Simplify right side
   475,096.36x = 168,693,540,068.59
5. Step 5: Solve for x
   x = 168,693,540,068.59/475,096.36
6. Step 6: Final answer
   x = 355,072.26